Printing head, printing device and dyeing equipment

Abstract

The utility model provides a printing head, a printing device and dyeing equipment. The printing head comprises a base, a nozzle array assembly, an ink supply assembly and a power supply assembly. The nozzle array assembly comprises a nozzle array composed of a plurality of nozzles, and a fixing assembly used for fixing the nozzle array. Each spray head comprises a metal sheet, a spray needle and a piezoelectric resonator; the base is provided with a through hole array matched with the spray head array, the spray head array assembly is fixed to the base so that the spray head array can directly face the through hole array, and each spray head in the spray head array can be contained in one through hole in the through hole array; the ink supply assembly is fixed to the base, and an ink outlet of the ink supply assembly communicates with the ink inlet end of the spray needle of each spray head and is used for supplying ink to the spray needle. The output end of the power supply assembly is connected with the piezoelectric resonators on the sprayers, and the power supply assembly is used for providing electric signals for the piezoelectric resonators. The printing head, the printing device and the dyeing equipment provided by the utility model are used for finishing large-breadth printing and dyeing with high quality.

Description

Technical Field

[0001] The present application relates to the technical field of inkjet printing and dyeing, and in particular to a print head, a printing device and a dyeing equipment. Background Art

[0002] During the processing of fabrics, dyeing or spraying is often required. Traditional textile printing and dyeing technology involves placing the grey fabric in a dyeing tank for dyeing, followed by multiple soaking and washing steps. Therefore, the water-saving and waterless printing and dyeing technology for textiles is an inevitable trend in current development.

[0003] At present, textiles produced by the conventional dip-dyeing and pad-dyeing techniques undergo multiple dips and washes. Existing spray-dyeing nozzles consume a lot of energy, resulting in high costs. The liquid output is small and the viscosity of the spraying liquid is limited, resulting in low printing and dyeing quality. Utility Model Content

[0004] In view of this, the present application provides a print head, a printing device and a dyeing device for completing large-width printing and dyeing with high quality.

[0005] Specifically, the present application is implemented through the following technical solutions:

[0006] The first aspect of the present application provides a print head, the print head comprising a base, a nozzle array assembly, an ink supply assembly and a power supply assembly; wherein,

[0007] The nozzle array assembly includes a nozzle array composed of a plurality of nozzles, and a fixing assembly for fixing the nozzle array; each nozzle includes a metal sheet, a nozzle needle located at the edge of the metal sheet and parallel to the metal sheet, and a piezoelectric resonator located on the side of the metal sheet;

[0008] The base has a through-hole array matching the nozzle array, and the nozzle array assembly is fixed on the base so that the nozzle array is directly opposite to the through-hole array, and each nozzle in the nozzle array is accommodated in a through-hole in the through-hole array;

[0009] The ink supply assembly is fixed on the base, and the ink outlet of the ink supply assembly is connected to the ink inlet end of the nozzle needle of each nozzle, so as to supply ink to the nozzle needle;

[0010] The output end of the power supply component is connected to the piezoelectric resonator on each of the nozzles to provide an electrical signal to the piezoelectric resonator.

[0011] A second aspect of the present application provides a printing device, which includes a plurality of the print heads to achieve printing with a preset width.

[0012] A third aspect of the present application provides a dyeing device, which includes at least one printing device to achieve double-sided dyeing or single-sided reverse dyeing.

[0013] The print head, printing device and dyeing equipment provided by the present application are provided with a nozzle array assembly, an ink supply assembly and a power supply assembly through a base, and then the nozzle is fixed by a firmware assembly, the nozzle is powered by the power supply assembly, and the nozzle is provided with ink based on the ink supply assembly, and finally the ink is ejected through the nozzle to complete the printing and dyeing of textiles. In this way, the piezoelectric ceramic on the nozzle controls the nozzle for printing and dyeing, which can reliably reduce the liquid carrying rate during fabric printing and dyeing, improve the utilization rate of dyes, reduce water consumption, and ensure the quality of printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a print head shown as an exemplary embodiment of the present application;

[0015] Figure 2 A partial schematic diagram of a print head shown as an exemplary embodiment of the present application;

[0016] Figure 3 A partial schematic diagram of a print head shown as an exemplary embodiment of the present application;

[0017] Figure 4 A schematic diagram of a nozzle according to an exemplary embodiment of the present application;

[0018] Figure 5 A left side view of a nozzle shown as an exemplary embodiment of the present application;

[0019] Figure 6 This is an external schematic diagram of a print head according to an exemplary embodiment of the present application;

[0020] Figure 7 A schematic diagram of a fixing assembly shown as an exemplary embodiment of the present application;

[0021] Figure 8 A top view of a printing device shown as an exemplary embodiment of the present application;

[0022] Fig. 9 A top view of a printing device shown as another exemplary embodiment of the present application;

[0023] Fig.10 A top view of a printing device shown as another exemplary embodiment of the present application;

[0024] Fig.11 A schematic diagram of a dyeing device shown as an exemplary embodiment of the present application;

[0025] Fig.12A schematic diagram of a dyeing device is shown as another exemplary embodiment of the present application.

[0026] Description of Figure Numbers:

[0027] 1: Base;

[0028] 2: Nozzle array assembly;

[0029] 3: Ink supply assembly;

[0030] 4: Power supply components;

[0031] 5: Fan;

[0032] 6: Temperature control display;

[0033] 7: Shell;

[0034] 8: Fixing components;

[0035] 11: through hole array;

[0036] 111: through hole;

[0037] 21: nozzle array;

[0038] 22: Fixed components;

[0039] 211: nozzle;

[0040] 2111: Metal sheet;

[0041] 2112: Spray needle;

[0042] 2113: Piezoelectric resonator;

[0043] 31: ink inlet module;

[0044] 32: Ink room;

[0045] 33: ink outlet;

[0046] 311: ink inlet;

[0047] 312: ink inlet pipe;

[0048] 41: External interface;

[0049] 81: concave fixing frame;

[0050] 82: nozzle fixing assembly;

[0051] 811: first side plate;

[0052] 812: second side plate;

[0053] 821: nozzle fixing plate;

[0054] 822: nozzle side pressure plate;

[0055] 823: nozzle bottom pressure plate;

[0056] 91: first printing device;

[0057] 92: second printing device;

[0058] 93: first drying device;

[0059] 94: second drying device;

[0060] 95: first single-side dyeing device;

[0061] 96: second single-sided dyeing device;

[0062] 97: Turning device. DETAILED DESCRIPTION

[0063] Here, exemplary embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application.

[0064] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in this article refers to and includes any or all possible combinations of one or more associated listed items.

[0065] It should be understood that although the terms first, second, third, etc. may be used in the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0066] The present application provides a printing head, a printing device and a dyeing device for completing large-width printing and dyeing with high quality.

[0067] Specific embodiments are given below to introduce the technical solution of the present application in detail.

[0068] Figure 1 A schematic diagram of a print head shown as an exemplary embodiment of the present application. Figure 2A partial schematic diagram of a print head shown in an exemplary embodiment of the present application. Figure 3 A partial schematic diagram of a print head shown as an exemplary embodiment of the present application; Figure 4 This is a schematic diagram of a nozzle according to an exemplary embodiment of the present application. Figure 1 , Figure 2 , Figure 3 and Figure 4 The print head provided in this embodiment includes a base 1, a nozzle array assembly 2, an ink supply assembly 3 and a power supply assembly 4; wherein,

[0069] The nozzle array assembly 2 includes a nozzle array 21 composed of a plurality of nozzles 211, and a fixing assembly 22 for fixing the nozzle array 21; each nozzle 211 includes a metal sheet 2111, a nozzle needle 2112 located at the edge of the metal sheet 2111 and parallel to the metal sheet 2111, and a piezoelectric resonator 2113 located at the side of the metal sheet 2111;

[0070] The base 1 has a through hole array 11 matching the nozzle array 21, and the nozzle array assembly 2 is fixed on the base 1 so that the nozzle array 21 is directly opposite to the through hole array 11, and each nozzle 211 in the nozzle array 21 is accommodated in a through hole 111 in the through hole array 11;

[0071] The ink supply assembly 3 is fixed on the base 1, and the ink outlet of the ink supply assembly 3 is connected to the ink inlet of the spray needle 2112 of each of the nozzles 211, so as to supply ink to the spray needle 2112;

[0072] The output end of the power supply component 4 is connected to the piezoelectric resonator 2113 on each of the nozzles 211 to provide an electrical signal to the piezoelectric resonator 2113 .

[0073] Specifically, the specific number of nozzles 211 included in the nozzle array 21 is determined according to actual needs, and is not limited in this embodiment. For example, in one embodiment, the nozzle array 21 can be composed of 48 nozzles 211 with a preset distance between them. It should be noted that setting the spacing between adjacent nozzles to the same value can make the inkjet more uniform, which can more effectively improve the overall performance, thereby increasing the inkjet speed.

[0074] Furthermore, Figure 5 This is a left view of a nozzle according to an exemplary embodiment of the present application. Figure 4 and Figure 5 The specific structure of the nozzle 211 is briefly introduced below:

[0075] Specifically, the metal sheet 2111 has a hanging ear, and the spray needle 2112 is fixed to an end of the metal sheet 2111 away from the hanging ear in a manner parallel to the metal sheet 2111 .

[0076] Furthermore, the piezoelectric resonator 2113 is located on the side of the metal sheet 2111 ; the piezoelectric resonator is used to drive the metal sheet 2111 to vibrate under the control of a driving electrical signal, so as to vibrate the spray needle 2112 and vibrate out the liquid in the spray needle 2112 .

[0077] It should be noted that the nozzle 211 is provided with piezoelectric resonators 2113 on both sides of the metal sheet 2111 so as to drive the metal sheet 2111 to vibrate at the same time under the control of the driving electrical signal. Compared with only providing the piezoelectric resonator 2113 on one side of the metal sheet, the two groups of piezoelectric resonators 2113 can make the vibration amplitude and vibration strength of the metal sheet 2111 larger, so that the vibration amplitude of the spray needle 2112 is larger and the vibration speed is faster, and the ink stored in the spray needle 2112 is easier to overcome the surface tension at the liquid outlet of the spray needle and drip. On this basis, the inner diameter of the spray needle 2112 is increased and the spray needle for printing high-viscosity liquid can still discharge liquid smoothly. Therefore, the nozzle 211 can not only increase the liquid output of the spray needle 2112 during a single vibration, improve the printing and dyeing efficiency, but also be suitable for high-viscosity liquids to be printed, expanding the scope of application of printing. The nozzle 211 provided in the present application can be applied to liquids to be printed with a CPS of 50 to 2000.

[0078] Furthermore, the power supply component 4 provides an electrical signal to the piezoelectric resonator 2113, thereby controlling the state of the nozzle 211. Specifically, the power supply component 4 may include an external interface, a printed circuit board electrically connected to the external interface, and a flexible circuit board electrically connected to the printed circuit board, and the flexible circuit board is electrically connected to the piezoelectric resonator of each nozzle to provide an electrical signal to the piezoelectric resonator.

[0079] It should be noted that the power supply component 4 can accurately control the injection speed, flow rate and other parameters of the spray needle 2112 by changing the parameters of the electrical signal such as the frequency, amplitude or pulse width, thereby achieving precise injection operation.

[0080] Furthermore, the power supply component 4 is electrically connected to the outside world through an external interface to supply power to the piezoelectric resonator 2113 .

[0081] For further information, please also refer to Figure 1 and Figure 2 The specific number of through holes 111 on the through hole array 11 is consistent with the number of nozzles included in the nozzle array. For example, in one embodiment, in combination with the above example, when the number of nozzles included in the nozzle array is 48, the number of through holes 111 included in the through hole array is also 48.

[0082] Furthermore, the arrangement of the through holes 111 matches the arrangement of the nozzles 211, ensuring that the nozzle array 21 is directly opposite to the through hole array 11, and ensuring that each nozzle needle 2112 can be accommodated by a through hole 111. By such an arrangement, the stability and alignment of the nozzle array 21 can be improved, ensuring that each nozzle can accurately spray onto the target surface, and avoiding the problem of uneven printing or coating caused by nozzle position deviation.

[0083] For further information, please refer to Figure 1 The ink supply assembly 3 receives ink from the ink cartridge and communicates with the nozzle needle 2112 through the ink outlet, thereby providing ink supply to the nozzle 211.

[0084] For further information, please also refer to Figure 1 and Figure 3 The ink supply assembly 3 includes at least one ink inlet module 31, an ink chamber 32, and a plurality of ink outlets 33; the number of the plurality of ink outlets 33 is the same as the number of the nozzles 211 included in the nozzle array 21, and each ink outlet 33 is connected to the ink inlet of the nozzle needle 2112 of a nozzle 211; wherein

[0085] The at least one ink inlet module 31 is in communication with the ink chamber 32 and is used to input ink into the ink chamber 32;

[0086] The ink inlet module 31 includes an ink inlet port 311 and an ink inlet pipe 312 communicating with the ink inlet port 311 ; an ink outlet end of the ink inlet pipe 312 is connected to the ink chamber 32 .

[0087] It should be noted that two ink inlets 311 can be designed for the ink supply component 3. Ink is input through one of the ink inlets 311, and air is removed through the other ink inlet 311. This can ensure that the ink in the ink supply component 3 always remains unobstructed and prevent air from mixing into the ink and affecting the continuity of printing by the nozzle 211.

[0088] Reference Figure 3 The ink chamber 32 is a container for storing ink. The ink chamber 32 receives the ink delivered by the ink inlet module 31 and maintains the stability and a certain pressure of the ink so that the nozzle can work normally.

[0089] Furthermore, the lower end of the ink chamber 32 is connected to an ink outlet 33. The specific number of the ink outlets 33 is determined according to actual needs and is not limited in this embodiment. For example, in one embodiment, in combination with the above example, the number of the ink outlets 33 is set to be consistent with the number of the nozzles 211, that is, 48 ​​ink outlets 33.

[0090] Furthermore, the ink outlet 33 is connected to the ink inlet end of the spray needle 2112 through a pipe to transport ink into the spray needle 2112. It should be noted that the specific connection method between the ink outlet 33 and the spray needle 2112 is determined according to actual needs and is not limited in this embodiment. For example, in one embodiment, a hose can be used to connect the ink outlet 33 and the spray needle 2112.

[0091] In this embodiment, ink is injected through the ink inlet module, and the ink is provided to the nozzle through the ink chamber and the ink outlet, so that the ink injection process can be completed quickly and efficiently.

[0092] The print head provided in this embodiment places a nozzle array assembly, an ink supply assembly and a power supply assembly through a base, and then fixes the nozzle through a firmware assembly, supplies power to the nozzle based on the power supply assembly, and provides ink to the nozzle based on the ink supply assembly, and finally sprays the ink through the nozzle to complete the printing and dyeing of textiles. In this way, the piezoelectric ceramic on the nozzle controls the nozzle for printing and dyeing, which can reliably reduce the liquid carrying rate during fabric printing and dyeing, improve the utilization rate of dyes, reduce water consumption, and ensure the quality of printing.

[0093] Figure 6 This is a schematic diagram of the external structure of a print head according to an exemplary embodiment of the present application. Figure 6 The print head further comprises a shell 7, wherein the shell 7 is sleeved on the base 1, the ink inlet 311 is fixed on the shell 7, and the external interface 41 of the power supply component 4 is fixed on the shell.

[0094] Specifically, the housing 7 can fix components such as the ink inlet 311 and the external interface 41 of the power supply assembly 4, thereby avoiding problems such as loose connections.

[0095] Furthermore, the housing 7 also provides protection for the various components inside the print head to prevent them from being affected or damaged by the external environment. The housing can play a role in dustproof and waterproof, thereby extending the service life of the print head.

[0096] For further information, please refer to Figure 3 and Figure 6 The print head further includes a fan 5, which is fixed on the housing 7 and is used to dissipate heat for the print head.

[0097] In specific implementation, the fan 5 is fixed on the top of the housing 7, and can help the print head dissipate heat through air flow, thereby ensuring a stable working state of the print head. It should be noted that a temperature control display 6 can also be provided on the housing 7 to display the working temperature of the print head in real time.

[0098] In a specific implementation, in one embodiment, when the temperature displayed by the temperature control display 6 exceeds a safe temperature range, the power of the fan 5 can be automatically increased to reduce the temperature of the print head to a safe temperature range.

[0099] The print head provided in this embodiment protects and fixes components such as the ink inlet through a shell, and maintains the temperature range of the print head within a safe range through a fan, thereby improving the performance and reliability of the print head.

[0100] Figure 7 This is a schematic diagram of a fixing assembly according to an exemplary embodiment of the present application. Figure 7 In the print head provided in this embodiment, the fixing assembly 2 includes a fixing frame 81 and a nozzle fixing assembly 82 for fixing the nozzle; wherein,

[0101] The fixing frame 81 includes a first side plate 811 and a second side plate 812; the first side plate 811 and the second side plate 812 are fixed on the base 1 in a manner that they are perpendicular to the base 1 and the first side plate 811 and the second side plate 812 are opposite to each other;

[0102] The nozzle fixing assembly 82 includes a nozzle fixing plate 821, a nozzle side pressure plate 822 and a nozzle bottom pressure plate 823;

[0103] The bottom surface of the nozzle fixing plate 821 has a through slot array matching the nozzle array 21; each through slot in the array penetrates along the width direction of the nozzle fixing plate 821; the length of each through slot along the length direction of the nozzle fixing plate 821 is the same as the thickness of the metal sheet of the nozzle 211; the hanging ear on the metal sheet of each nozzle 211 is accommodated in a through slot;

[0104] The nozzle fixing plate 821 is fixed to the first side plate 811 and the second side plate 812 at one end away from the fixing bottom plate in a manner parallel to the fixing bottom plate;

[0105] The nozzle side pressure plate 822 is fixed on the first side surface of the nozzle fixing plate 821; wherein the first side surface is any one of the two side surfaces of the nozzle fixing plate 821 along the width direction;

[0106] The nozzle bottom pressure plate 823 is fixed on the bottom surface of the nozzle fixing plate 821 so that after the hanging ear is inserted into the through groove in a manner that the protrusion is away from the nozzle side pressure plate 822, the nozzle bottom pressure plate 823 covers the protrusion.

[0107] Specifically, the first side plate 811 and the second side plate 812 are fixed on the fixed bottom plate, and the distance between them can be determined according to the length of the fixed nozzle assembly 82 so that the fixed nozzle assembly 82 can be installed on the first side plate 811 and the second side plate 812 .

[0108] In specific implementation, the specific shapes and specific materials of the first side plate 811 and the second side plate 812 can be determined according to actual needs, and are not limited in this embodiment. For example, in one embodiment, the first side plate 811 and the second side plate 812 are both made of high hardness materials, and the first side plate 811 and the second side plate 812 are made into the same shape.

[0109] Further, the nozzle fixing plate 821 is used to accommodate the nozzles 211. The number of nozzles 211 that can be accommodated on the nozzle fixing plate 821 depends on the number of through slots included thereon. In specific implementation, the specific number of through slots can be determined according to actual needs, and this is not limited in this embodiment. For example, in one embodiment, in combination with the above example, the nozzle fixing plate 821 has 48 through slots.

[0110] Further, mounting holes may be provided at both ends of the nozzle fixing plate 821 for fixing the nozzle side pressure plate 822 to the nozzle fixing plate 821 through fixing components (such as screws). It should be noted that any side surface of the nozzle fixing plate 821 in the width direction may be used as the first side surface to install the nozzle side pressure plate 822 on the first side surface. In this way, by installing the nozzle side pressure plate, the movement of the nozzle 211 in the width direction of the nozzle fixing plate 821 can be restricted, and thus, the restriction on its movement to the first side surface is completed.

[0111] Furthermore, the nozzle bottom pressure plate 823 is fixed on the bottom surface of the nozzle fixing plate 821, so that after the hanging ear is inserted into the through groove in a manner that the protrusion is away from the nozzle side pressure plate 822, the nozzle bottom pressure plate 823 covers the protrusion. In specific implementation, mounting holes can be provided at both ends of the nozzle fixing plate 821, which are used to fix the nozzle bottom pressure plate 823 on the nozzle fixing plate 821 through a fixing component (such as a screw) to limit the movement of the nozzle 211.

[0112] The print head provided in this embodiment can fix the nozzle by the nozzle side pressure plate and the nozzle bottom pressure plate, which can simply and conveniently fix the nozzle and improve the efficiency of nozzle fixing. In this way, the quality of printing can be guaranteed because the effect of nozzle fixing is guaranteed.

[0113] Furthermore, based on the above embodiments, the present application also provides a printing device. The printing device provided by the present application is introduced below:

[0114] Specifically, the present application provides a printing device, which includes a plurality of the print heads to achieve printing with a preset width.

[0115] Specifically, the printing device includes multiple print heads, and the multiple print heads are used to expand the printing width of the printing device to meet the printing and dyeing requirements of different widths. It should be noted that the width and length of the print head can be obtained according to the printing and dyeing requirements for the width, and then the number of print heads can be determined.

[0116] The following is a brief introduction to the structure of the printing device:

[0117] Figure 8 This is a top view of a printing device shown as an exemplary embodiment of the present application. Figure 8 The printing device provided in this embodiment includes N groups of print heads, each group of print heads includes M print heads, wherein:

[0118] The M print heads in each group of print heads are arranged in sequence along the moving direction of the blank cloth to be printed; in the width direction, the distance between the rear print head of two adjacent print heads in the M print heads and the front print head is equal to the preset distance; in the moving direction, the distance between the rear print head of two adjacent print heads in the M print heads and the front print head is greater than the preset value, so that one print head can be accommodated between the two adjacent print heads;

[0119] The N groups of print heads are arranged in sequence along the width direction, and when viewed along the width direction, the distance between the first print head in the rear group of print heads in two adjacent groups of print heads and the last print head in the front group of print heads is equal to the preset distance;

[0120] Viewed along the moving direction, two adjacent groups of print heads are arranged alternately, with each print head in one of the two adjacent groups of print heads being distributed in odd rows, and each print head in the other group of print heads being distributed in even rows.

[0121] Specifically, a group of print heads refers to M print heads located in the same column along the moving direction of the blank cloth to be printed. It should be noted that, for a group of print heads, these M print heads are not strictly located in the same column. From the perspective of the width, the distance between the rear print head and the front print head of two adjacent print heads in the M print heads is equal to the preset distance. Among them, the preset distance is set according to actual needs. In this embodiment, the preset distance is not limited. By setting the preset distance, it can be ensured that the distance between two adjacent nozzles in the entire printing is equal to the preset distance, so as to ensure the uniformity and precision of the printing.

[0122] Further, viewed along the moving direction, a distance between a rear print head and a front print head of two adjacent print heads among the M print heads is greater than a preset value, so that a print head can be accommodated between the two adjacent print heads.

[0123] For further information, please refer to Figure 8 , the N groups of print heads are arranged in sequence along the width direction, and from the perspective of the width direction, the distance between the first print head in the rear group of print heads in two adjacent groups of print heads and the last print head in the front group of print heads is equal to the preset distance. It should be noted that for a group of print heads, the order of the print heads is determined according to the movement direction. For example, Figure 8 In the embodiment, for the first group of print heads, the top print head is the first print head in the group of print heads, and the bottom first print head is the last print head in the group.

[0124] Further, see Figure 8 , viewed along the movement direction, two adjacent groups of print heads are arranged alternately, with each print head in one of the two adjacent groups of print heads being distributed in odd rows, and each print head in the other group of print heads being distributed in even rows.

[0125] For example, for the first group of print heads and the second group of print heads, the distance between the first print head in the second group of print heads and the last print head in the first group of print heads is equal to the preset distance. Further, the first print head in the first group of print heads is arranged starting from the second row, and each print head is located in an even row, the first print head in the second group of print heads is arranged starting from an odd row, and each print head is located in an odd row, and the first print head in the third group of print heads is arranged starting from an even row, and each print head is located in an even row.

[0126] Specifically, the specific values ​​of N and M are determined according to actual needs and are not limited in this embodiment.

[0127] The printing device provided in this embodiment is provided with multiple print heads, and the print heads are arranged according to the above-mentioned arrangement method. In this way, printing of a preset width can be achieved, and the spacing between each nozzle in the printing device can be ensured to be equal to the preset value, thereby ensuring the printing quality.

[0128] Fig. 9 This is a top view of a printing device shown in another exemplary embodiment of the present application. Fig. 9 In the printing device shown in this embodiment, each print head in the N groups of print heads is arranged in a manner that the nozzle array is consistent with the width direction.

[0129] Specifically, in this embodiment, the print heads are arranged in a manner that the nozzle array is consistent with the width direction, which is a straight arrangement.

[0130] Optional, in Fig. 9In the example shown, the nozzle spacing in the nozzle array of each print head is 3.2 mm, M is equal to 8, N is equal to 6, and the preset spacing is equal to 0.4 mm, so that the printing device can achieve printing with a width of 1.8 m.

[0131] It should be noted that the print heads are arranged in a manner that the nozzle array is consistent with the width direction, and the nozzle spacing is 3.2 mm. The preset spacing is equal to 0.4 mm, which can ensure that the spacing between any two nozzles in the printing device is equal to 0.4 mm to ensure the printing quality.

[0132] For further information, please refer to Fig. 9 , the M print heads in each group of print heads are arranged in sequence along the moving direction of the blank cloth to be printed. For example, taking the first group of print heads as an example, the print heads are arranged in sequence 2-1, 4-1, 6-1...16-1 in the direction of the blank cloth, for a total of 8 print heads. Similarly, the print heads in the second group are arranged in sequence 1-2, 3-2, 5-2...15-2 in the direction of the blank cloth, for a total of 8 print heads.

[0133] Further, referring to the above description, for a group of print heads, the distance between two adjacent print heads in the M print heads constituting the group of print heads in the width direction is a preset distance.

[0134] It should be noted that the specific value of the preset spacing is determined according to actual needs, and is not limited in this embodiment. For example, in one embodiment, in combination with the above example, the nozzle assembly of the print head includes 48 nozzles, and the spacing between every two nozzles is 3.2 mm. Since a group has 8 print heads, the preset spacing can be determined to be 0.4 mm, so that the spacing between any two nozzles of the composed printing device can be guaranteed to be equal to 0.4 mm.

[0135] Further, referring to the previous description, for a group of print heads, after determining the spacing between two adjacent print heads in the width direction, the installation position of each group of print heads in the width direction can be determined. For example, in one embodiment, in combination with the above example, taking the first group of print heads as an example, the 4-1 print head is moved 0.4 mm to the right as a whole compared to the 2-1 print head, the 6-1 print head is moved 0.4 mm to the right as a whole compared to the 4-1 print head, the 8-1 print head is moved 0.4 mm to the right as a whole compared to the 6-1 print head, ..., the 16-1 print head is moved 0.4 mm to the right as a whole compared to the 14-1 print head, and thus the installation of the group of print heads can be completed.

[0136] It should be noted that, viewed along the width direction, when installing the rear group of print heads in two adjacent groups of print heads, the spacing between its first print head and the front group of print heads is also a preset distance. For example, in one embodiment, in combination with the above example, in the second group of print heads, the 1-2 print head is moved 0.4 mm to the right as a whole compared to the 16-1 print head (in other words, the first nozzle on the left side of the 1-2 print head is moved 0.4 mm to the right compared to the last nozzle on the right side of the 16-1 print head), thereby determining the position of the second group of print heads. By determining the position of the rear group of print heads in two adjacent groups of print heads in this way, it can be ensured that the positions covered by the print heads are uniform, and the entire printing area can be covered more efficiently.

[0137] Furthermore, in the direction of movement, the distance between two adjacent print heads in each group of print heads is greater than a preset value, so that a print head can be accommodated between the two adjacent print heads. Specifically, when the print heads are arranged in a straight line, that is, when the print heads are arranged in a manner that the nozzle array is consistent with the width direction, the preset value needs to be greater than or equal to the width of the print head in the direction of movement. For example, in one embodiment, the width of the print head is 3mm, in which case the preset value can be determined as 3mm, and the distance between adjacent print heads in each group of print heads can be determined as 3.5mm, so as to stagger another group of print heads.

[0138] For further information, please refer to Fig. 9 , along the direction of movement, two adjacent groups of print heads are arranged alternately, with one group of print heads located in odd rows and the other group located in even rows. For example, in one embodiment, in combination with the above example, the first group of print heads (2-1, 4-1, 6-1...16-1) are located in even rows, the second group of print heads are located in odd rows (1-2, 3-2, 5-2...15-2), and the third group of print heads are located in even rows, until all the print heads are arranged.

[0139] The printing device provided in this embodiment arranges the print heads in a manner that the nozzle array is consistent with the width direction, and each group of print heads is staggered according to a preset spacing, thereby ensuring that the area covered by the print heads is uniform, avoiding the problem of printing overlap or gaps. In addition, the uniform spacing layout enables the printing device to cover the entire printing area more efficiently, thereby improving the uniformity and consistency of printing.

[0140] Fig.10 This is a top view of a printing device shown in another exemplary embodiment of the present application. Fig.10 Each print head in the N groups of print heads is arranged in a manner such that the nozzle array forms a specified angle with the width direction.

[0141] Specifically, the designated angle is set according to actual needs, and is not limited in this embodiment. By arranging the print heads in a manner that the nozzle array forms a designated angle with the width direction, a slanted arrangement of the print heads is provided.

[0142] Optionally, in a possible implementation, the nozzle spacing in the nozzle array of each print head is 3 mm, the specified angle is 48.19°, M is equal to 5, N is equal to 10, and the preset spacing is equal to 0.4 mm, so that the printing device can achieve printing with a width of 1.8 m.

[0143] Specifically, refer to Fig.10 The specific angle of the designated angle is set according to actual needs and is not limited in this embodiment. For example, the designated angle can be set to 48.19°.

[0144] Furthermore, after the nozzle array of the print head is rotated counterclockwise at 48.19° in the width direction, the projection distance of the nozzle in the width direction is 2 mm.

[0145] It should be noted that Fig.10 In the printing device shown, the spacing between each nozzle of the nozzle matrix of the print head is 3 mm. When the print heads are arranged, it is necessary to ensure that the spacing between any two nozzles is equal to the preset spacing. When the preset spacing is 0.4 mm, only 5 print heads are needed in each group of print heads to cover the 2 mm printing area.

[0146] In specific implementation, for example, in one embodiment, taking the first group of print heads as an example, the 3-1 print head is moved 0.4 mm to the right as a whole compared to the 1-1 print head, the 5-1 print head is moved 0.4 mm to the right as a whole compared to the 3-1 print head, the 7-1 print head is moved 0.4 mm to the right as a whole compared to the 5-1 print head, and the 9-1 print head is moved 0.4 mm to the right as a whole compared to the 7-1 print head. In this way, the installation of the first group of print heads is completed.

[0147] Similarly, from the perspective of the width, when installing the rear group of print heads in two adjacent groups of print heads, the distance between the first print head in the rear group of print heads and the front group of print heads is also a preset distance. For example, in one embodiment, in combination with the above example, in the second group of print heads, the 2-2 print head is moved 0.4 mm to the right as a whole compared to the 9-1 print head (in other words, the first nozzle on the left side of the 2-2 print head is moved 0.4 mm to the right compared to the last nozzle on the right side of the 9-1 print head), thereby determining the position of the second group of print heads. By determining the position of the rear group of print heads in two adjacent groups of print heads in this way, it can be ensured that the positions covered by the print heads are uniform, and the entire printing area can be covered more efficiently.

[0148] The printing device provided in this embodiment arranges the print heads in a manner that the nozzle array forms a specified angle with the width direction, and staggers each group of print heads according to a preset spacing, thereby ensuring that the area covered by the print heads is uniform, avoiding the problem of printing overlap or gaps. In addition, the uniform spacing layout enables the printing device to cover the entire printing area more efficiently, thereby improving the uniformity and consistency of printing.

[0149] Furthermore, based on the above embodiments, the present application also provides a dyeing device. The dyeing device provided by the present application is introduced below:

[0150] Specifically, the present application also provides a dyeing device, which includes at least one printing device to achieve double-sided dyeing or single-sided reverse dyeing.

[0151] Fig.11 This is a schematic diagram of a dyeing device shown in an exemplary embodiment of the present application. Fig.11 The dyeing device includes a first printing device 91, a second printing device 92, a first drying device 93 and a second drying device 94; wherein,

[0152] The first printing device 91 and the second printing device 92 are arranged opposite to each other to form a double-sided printing device; wherein the double-sided printing device is used to perform double-sided dyeing on the grey cloth to be printed and dyed;

[0153] The first drying device 93 and the second drying device 94 are arranged opposite to each other to form a double-sided drying device; wherein the double-sided drying device is used to dry the dyed grey cloth.

[0154] Specifically, the specific types of the first printing device 91 and the second printing device 92 can be determined according to actual needs, and are not limited in this embodiment. For example, the first printing device 91 and the second printing device 92 can both be determined as the printing devices described in the above embodiment.

[0155] In a specific implementation, the first printing device 91 and the second printing device 92 are arranged opposite to each other, and are used to print and dye on both sides of the grey cloth to be printed and dyed at the same time, which can improve the efficiency and consistency of printing and dyeing.

[0156] Furthermore, the specific types of the first drying device 93 and the second drying device 94 can be determined according to actual needs, and are not limited in this embodiment. In specific implementation, the first drying device 93 and the second drying device 94 can both be determined as heating devices to fix and dry the printed and dyed fabric after printing and dyeing.

[0157] Furthermore, the dyeing equipment also includes a cloth guide roller, through which the cloth to be printed and dyed enters from the cloth inlet end, and then is sent out from the cloth outlet end after printing, dyeing and drying. It should be noted that the cloth guide roller includes an active cloth guide roller and a passive cloth guide roller, and the active cloth guide roller and the passive cloth guide roller can be freely set to ensure that the dyeing equipment includes at least one active cloth guide roller.

[0158] The dyeing equipment provided in this embodiment performs double-sided dyeing on the grey cloth to be printed and dyed through the first printing device and the second printing device, and then dries the dyed grey cloth through the first printing device and the second printing device, which can not only improve the dyeing efficiency and dyeing quality, but also realize double-sided dyeing.

[0159] Fig.12 This is a schematic diagram of a dyeing device shown in another exemplary embodiment of the present application. Fig.12 The dyeing device includes a first single-side dyeing device 95, a second single-side dyeing device 96, and a flipping device 97 disposed between the first single-side dyeing device 95 and the second single-side dyeing device 96; wherein,

[0160] The first single-side dyeing device 95 and the second single-side dyeing device 96 both include a printing device and a drying device; wherein the printing device is used to perform single-side dyeing on the grey cloth to be printed and dyed; and the drying device is used to dry the dyed grey cloth;

[0161] The first single-side dyeing device 95 is used to dye and dry the front side of the printed fabric;

[0162] The turning device is used to turn the front and back sides of the grey cloth to be printed and dyed;

[0163] The second single-side dyeing device 96 is used for single-side dyeing and drying the reverse side of the grey cloth to be printed and dyed.

[0164] Specifically, the printing device and the drying device included in the first single-sided dyeing device 95 and the second single-sided dyeing device 96 may be any type of printing device and drying device.

[0165] In specific implementation, after the printed and dyed grey cloth is driven by the cloth guide roller from the cloth feeding end into the dyeing device, it is printed by the printing device 91 of the first single-sided dyeing device 95, and then dried by the drying device 92 to complete the printing of the first side; then the grey cloth is turned over based on the two turning devices 97, and the second side is printed by the printing device 91 of the second single-sided dyeing device 96, and the second side is dried by the drying device 92 to complete the printing of the second side, and then it is driven by the cloth guide roller to leave the dyeing device from the cloth outlet end, thereby completing the printing of the grey cloth.

[0166] The dyeing equipment provided in this embodiment dyes and dries the first side of the printed and dyed fabric through the first single-side dyeing device, and then dyes and dries the second side of the printed and dyed fabric through the second single-side dyeing device. The dyeing efficiency and dyeing quality can be improved, and double-side dyeing can be achieved by single-side dyeing, turning over, and then single-side dyeing.

[0167] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A print head, characterized in that: The print head includes a base, a nozzle array assembly, an ink supply assembly and a power supply assembly; wherein, The nozzle array assembly includes a nozzle array composed of a plurality of nozzles, and a fixing assembly for fixing the nozzle array; each nozzle includes a metal sheet, a nozzle needle located at the edge of the metal sheet and parallel to the metal sheet, and a piezoelectric resonator located on the side of the metal sheet; The base has a through-hole array matching the nozzle array, and the nozzle array assembly is fixed on the base so that the nozzle array is directly opposite to the through-hole array, and each nozzle in the nozzle array is accommodated in a through-hole in the through-hole array; The ink supply assembly is fixed on the base, and the ink outlet of the ink supply assembly is connected to the ink inlet end of the nozzle needle of each nozzle, so as to supply ink to the nozzle needle; The output end of the power supply component is connected to the piezoelectric resonator on each of the nozzles to provide an electrical signal to the piezoelectric resonator.

2. The print head according to claim 1, characterized in that: The ink supply assembly includes at least one ink inlet module, an ink chamber, and a plurality of ink outlets; the number of the plurality of ink outlets is the same as the number of nozzles included in the nozzle array, and each ink outlet is connected to the ink inlet end of the nozzle needle of a nozzle; wherein The at least one ink inlet module is in communication with the ink chamber and is used to input ink into the ink chamber; The ink inlet module comprises an ink inlet and an ink inlet pipeline communicated with the ink inlet; an ink outlet end of the ink inlet pipeline is connected to the ink chamber.

3. The print head according to claim 2, characterized in that: The print head further comprises a shell, the shell is sleeved on the base, the ink inlet is fixed on the shell, and the external interface of the power supply component is fixed on the shell.

4. The print head according to claim 3, characterized in that: The print head further comprises a fan, which is fixed on the housing and is used for dissipating heat from the print head.

5. The print head according to claim 1, characterized in that: The fixing assembly includes a fixing frame and a nozzle fixing assembly for fixing the nozzle; wherein, The fixing frame comprises a first side plate and a second side plate; the first side plate and the second side plate are fixed on the base in a manner of being perpendicular to the base and opposite to each other; The nozzle fixing assembly includes a nozzle fixing plate, a nozzle side pressure plate and a nozzle bottom pressure plate; The bottom surface of the nozzle fixing plate is provided with a through slot array matching the nozzle array; each through slot in the array penetrates along the width direction of the nozzle fixing plate; the length of each through slot along the length direction of the nozzle fixing plate is the same as the thickness of the metal sheet of the nozzle; the hanging ear on the metal sheet of each nozzle is accommodated in a through slot; The nozzle fixing plate is fixed to the first side plate and the second side plate at one end away from the base in a manner parallel to the base; The nozzle side pressure plate is fixed on the first side surface of the nozzle fixing plate; wherein the first side surface is any one of the two side surfaces of the nozzle fixing plate along the width direction; The nozzle bottom pressure plate is fixed on the bottom surface of the nozzle fixing plate so that after the hanging ear is inserted into the through groove in a manner that the protrusion is away from the nozzle side pressure plate, the nozzle bottom pressure plate covers the protrusion.

6. A printing device, characterized in that: The printing device comprises a plurality of print heads as described in any one of claims 1 to 5 to achieve printing with a preset width.

7. The printing device according to claim 6, characterized in that: The printing device includes N groups of print heads, each group of print heads includes M print heads, wherein: The M print heads in each group of print heads are arranged in sequence along the moving direction of the blank cloth to be printed; in the width direction, the distance between the rear print head of two adjacent print heads in the M print heads and the front print head is equal to the preset distance; in the moving direction, the distance between the rear print head of two adjacent print heads in the M print heads and the front print head is greater than the preset value, so that one print head can be accommodated between the two adjacent print heads; The N groups of print heads are arranged in sequence along the width direction, and when viewed along the width direction, the distance between the first print head in the rear group of print heads in two adjacent groups of print heads and the last print head in the front group of print heads is equal to the preset distance; Viewed along the moving direction, two adjacent groups of print heads are arranged alternately, with each print head in one of the two adjacent groups of print heads being distributed in odd rows, and each print head in the other group of print heads being distributed in even rows.

8. The printing device according to claim 7, characterized in that: Each print head in the N groups of print heads is arranged in a manner that the nozzle array is consistent with the width direction.

9. The printing device according to claim 8, characterized in that: The nozzle spacing in the nozzle array of each print head is 3.2 mm, M is equal to 8, N is equal to 6, and the preset spacing is equal to 0.4 mm, so that the printing device can achieve printing with a width of 1.8 m.

10. The printing device according to claim 7, characterized in that: Each print head in the N groups of print heads is arranged in a manner that the nozzle array forms a specified angle with the width direction.

11. The printing device according to claim 10, characterized in that: The nozzle spacing in the nozzle array of each print head is 3 mm, the specified angle is 48.19°, M is equal to 5, N is equal to 10, and the preset spacing is equal to 0.4 mm, so that the printing device can achieve printing with a width of 1.8 m.

12. A dyeing device, characterized in that: The dyeing device comprises at least one printing device as described in any one of claims 6 to 11 to achieve double-sided dyeing or single-sided reverse dyeing.

13. The dyeing device according to claim 12, characterized in that: The dyeing device comprises a first printing device, a second printing device, a first drying device and a second drying device; wherein, The first printing device and the second printing device are arranged opposite to each other to form a double-sided printing device; wherein the double-sided printing device is used to perform double-sided dyeing on the grey cloth to be printed and dyed; The first drying device and the second drying device are arranged opposite to each other to form a double-sided drying device; wherein the double-sided drying device is used to dry the dyed grey cloth.

14. The dyeing device according to claim 12, characterized in that: The dyeing equipment comprises a first single-side dyeing device, a second single-side dyeing device, and a flipping device arranged between the first single-side dyeing device and the second single-side dyeing device; wherein, The first single-side dyeing device and the second single-side dyeing device both include a printing device and a drying device; wherein the printing device is used to perform single-side dyeing on the grey cloth to be printed and dyed; and the drying device is used to dry the dyed grey cloth; The first single-side dyeing device is used to dye and dry the front side of the printed and dyed grey cloth on a single side; The turning device is used to turn the front and back sides of the grey cloth to be printed and dyed; The second single-side dyeing device is used for single-side dyeing and drying the reverse side of the grey cloth to be printed and dyed.

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